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Recent label and matrix project improvement

Today, I’d highlight two recent improvements to the label and matrix projects. When you have multiple slaves in your Hudson build farm, you can use labels to classify slaves by their capability/environment/architecture/etc. For example, your one slave might have “32bit” and “windows” label, while another one might have “linux”, “ubuntu”, and “64bit.” (with plugins like platform-labeler plugin, you can attach labels automatically, too.) Or if you do Selenium testing, you might add browser names as labels to indicate which slave has which browser available.

With such set up, you then specify that such and such jobs can be only run on such and such labels. For example, you might say your “test-foo” job requires the “windows” label, while your “compile-bar” job might require the “macos” label.

Starting 1.372, Hudson now lets you use boolean expressions here, instead of just specifying one label as the requirement. For example, your “seleniumTest-zot” job can now say it requires “windows&&firefox” since it’s meant to run on Windows with Firefox. Or if your job requires a shell script, you might say “!windows” to indicate that it has to be run somewhere that’s not Windows.

Labels are also often used in the context of the multi-configuration project (a.k.a. matrix project.) In a multi-configuration project, you specify what to execute to build your project, then specify a number of “axes” that represents the variable and their possible values to execute a build. There are several different kinds of axes (and this is of course extensible), and one of them is the label axis.

For example, say you have a test suite that you want to run on Windows, Linux, and Solaris, to make sure it works correctly under all these environments. In such a case, you define one label axis, and tell Hudson that you have three possible values “windows”, “linux”, and “solaris.” When you build this project, Hudson will run your build three times by finding appropriate slave that carries the specified label.

In 1.373, you can now specify multiple label axes. For example, you might have a C++ project that needs to be compiled on various platforms. In such a case, you can define one label axis to be “windows”, “linux”, “solaris”, and you can define another label axis to be “32bit” and “64bit”. This will generate 3x2=6 combinations to be executed.

Sometimes the exhaustive combinations do not make sense. In such a case, you can use a filter boolean expression to eliminate some values. You can also use the same mechanism to create a sparse matrix --- that is, you tell Hudson to reduce the coverage to 33%, and Hudson will eliminate every 2 out of 3 combinations.

Finally, I’d like to thank Sandia National Laboratories for sponsoring this work, which made it possible for InfraDNA to provide this feature to the community. People often think that contributing code is the only way to give back to the project, but sponsoring features like this is another great way to do it.

HudsonMobi 2.0 … still waiting for Apple Review
HudsonMobi 2.0 is ready … but seems that Apple is too busy with their review input queue filled up with new Apps to review This will cause 1-2 days MAX of delay, but stay tuned as HudsonMobi 2.0 for iOS 4 is coming.

Copenhagen Hudson User Meetup

September is turning into a meetup month for the Hudson community. In parallel to the meetup in Oslo and the meetup in JavaOne, Nokia and InfraDNA are hosting a meetup in Copenhagen on September 6th, Monday. Read on for the details.

The current tentative plan is to do a short "state of the union / what's new" kind of presentation, then use the rest of the time for open mic Q&A, but if you have other ideas, or better yet if you want to do some talks, please let me know. I think the event will be fun.

If you plan on coming, please drop me a note, so that we can get some sense of the attendance.

When: September 6th, 18:30
Where: Auditorium 1, Nokia Denmark A/S, København (map)
Food will be provided.

Hudson at JavaZone, Meetup in Oslo

JavaZone is a big Java conference in Scandinavia, and Hudson is well represented there. On September 8th, Håkon Snøtun will be presenting "Top 5 plugins for Hudson and Chuck Norris." and on September 9th, I'll be presenting "Getting more out of your Hudson."

But more importantly, what is a conference without drinking!? So in that spirit, InfraDNA will be organizing a Hudson User Meetup at The Scotsman from Sep 8th 19:30 (website.) We'll get together, have some drinks, and enjoy geeky conversations.

So if you are local or visiting Oslo for JavaZone, come join us. If you plan to join us at The Scotsman, please RSVP, and watch out for my twitter updates for any last minute time/location changes.

Pre-JavaOne Hudson Meetup

As we near autumn up here in the Northern Hemisphere, the wind is starting to blow a bit chillier and here in the Bay Area that can only mean one thing: ~~Oracle is suing everybody!~~ it's time for JavaOne!

A whole lot has changed since last year, Sun Microsystems was acquired by Oracle, Kohsuke left Snoracle to found InfraDNA and Hudson has continued to power on as the single best continuous integration server on the planet.

While the tickets for Oracle OpenWorld/JavaOne are just as outrageously expensive as they were last year, we are hosting a meetup/hackathon/continuous-drinking-contest at Digg the Sunday prior. We have not yet set any kind of agenda, but some core Hudson hackers and plenty of plugin developers should be in town so it should be a great time hacking on and/or with Hudson.

RSVP Here! * When: September 19th, 1:00 p.m. * Location: Digg's Office: 1040 Mariposa St - Suite 100, San Francisco, CA 94107

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Note: Unlike last year, we're trying to organize this with Meetup.com, if you experience any difficulties RSVPing let us know

Releases

Hudson ClearCase UCM Baseline Plug-in 1.7 released

Copy To Slave Plugin 1.2.1 released

Hudson Sauce OnDemand plugin 1.3 released

Android Emulator Plugin 1.3.1 released

Favorite 1.1 released

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Build #297 (Dec 28, 2009 2:01:03 AM)

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	No changes from last build.
	Started by an SCM change